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The Nuts and Bolts of Nuts and Bolts

The Nuts and Bolts of Nuts and Bolts

Super-informative post from MotorCycleCruiser.com

Nutsbolts

“In technical terms, the job of a threaded fastener is to apply a compressive force to a connection, creating a joint strong enough to oppose any static, tensile, and dynamic loads that may be placed upon it. By that same token, the fastener(s) used must also be capable of resisting impact, shock, vibration, shear, bend, torque and vector (angular) forces, as well as other compressive loads. Boil away the jargon and it means that bolts work by clamping things together under tension and that both the connection and the bolt must be strong enough resist any force that tries to break that connection or the bolt that’s holding it together.

Before we go much further let me point out that while there are formal definitions that distinguish bolts from screws, it’s a lot easier (and just as correct in an informal setting) to use either term to describe threaded fasteners, so unless we need to identify a particular type of fastener, such as sheet metal screw or Allen head bolt, we’ll use the terms screw and bolt interchangeably.

How Bolts Work Steel, no matter what its composition, is elastic, and when a load is applied to it in tension, it stretches; like any other spring, the further it’s stretched, the more it resists. Think of bolts as very stiff springs, and you’ll have the gist of it. Picture two steel plates, held together by a nut and bolt. Turning the nut advances it along the threads of the bolt, which creates tension on the portion of the bolt that passes through the joint, stretching it slightly. The more torque we apply to the nut, the further the bolt stretches, and the harder it tries to return to its relaxed state. As the bolt stretches a compressive load is placed on the joint, binding it together. That compressive load is directly proportional to the distance the bolt is stretched, which itself is dependent on how tight we can make the nut. In a nutshell, that’s how bolts work, and you can now understand why it’s so important to properly torque fasteners. Unless a screw is placed under the proper tension, it won’t be stretched far enough to secure the connection; in effect, it’ll be like any other slack spring-too relaxed to do its job.”

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Source: MotorCycleCruiser.com

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ISHOF announces International Snowmobile Groomer of the Year award recipients

ISHOF announces International Snowmobile Groomer of the Year award recipients

Groomer

“The International Snowmobile Hall of Fame announced the International Snowmobile Groomer of the Year awards.

These awards will be given out the weekend of Sept. 16-18 in Eagle River, Wis.

In this category, there are three groomer operators who have been nominated by their respective state snowmobile associations. These are the unsung heroes that volunteer their time and energy to create the smooth trails we ride.

They are:

Ron Benson from Timron, Col. nominated by the Colorado Snowmobile Association.

Wayne Aune from Fairdale, N.D. nominated by the North Dakota Snowmobile Association.

Gary Hilgendorf from Tomahawk, Wis. nominated by the Association of Wisconsin Snowmobile Clubs.

 

The Derby Track is again presenting the “Reunion” with grass drags, vintage show and swap meet.”

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Source: AmericanSnowmobiler.com

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Wausau, Wis. club awarded International Snowmobile Club of the Year

Wausau, Wis. club awarded International Snowmobile Club of the Year

Trailmates

“The International Snowmobile Hall of Fame has announced the recipient of the International Snowmobile Club of the Year award.

The weekend of September 16-18  it will be awarded to the Trailmates Snowmobile Club of Wausau, Wis.. This club, which has 168 very active volunteer families, was organized in 1968, grooms 80 miles of local trails, has their own groomer shed and clubhouse, partners with over a dozen charities and puts on Wisconsin’s largest grass drag race every fall to start the new season.

The Derby Track is again presenting the “Reunion” with grass drags, vintage show and swap meet. “

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Source: AmericanSnowmobiler.com

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Congress approves bill to exempt youth motorcycles, ATVs from lead law

Congress approves bill to exempt youth motorcycles, ATVs from lead law

“Both houses of Congress have voted to exempt youth ATVs and motorcycles from the lead law that essentially bans the sale of those machines at the end of the year.

The legislation, H.R. 2517, categorically excludes powersports vehicles from the lead content provisions of the Consumer Product Safety Improvement Act (CPSIA). The bill goes to President Obama for signature.

“For more than two years, the powersports industry and its riders have urged Congress to categorically exclude youth dirtbikes and ATVs from the CPSIA’s lead content provisions,” said Paul Vitrano, general counsel of the MIC. “We are most grateful that our collective voices finally have been heard. We wish to thank Rep. Mary Bono Mack (R-CA) for sponsoring the bill and Rep. Denny Rehberg (R-MT) and Rep. Michael Burgess (R-TX) for leading the effort to enact the categorical exclusion.”

The CPSIA bans the making, importing, distributing or selling of any product intended for children 12 and under that contains more than a specified amount of lead in any accessible part. It also requires all children’s products undergo periodic testing by independent laboratories approved by the Consumer Product Safety Commission (CPSC), which is responsible for implementing the law.

The CPSIA was designed to ban small toys with high lead content. But because of broadly written language in the law, it has been interpreted to apply to all products for kids 12 and under, including dirtbikes, ATVs, bicycles, clothing and books.

“This is excellent news for families around the nation who enjoy responsible motorized recreation,” said Rob Dingman, AMA president and CEO, after the House initially passed the bill on Monday. “It is vital that a lead-law exemption for OHVs be signed into law not only because it will once again allow families to enjoy riding together, but also so that children aren’t forced to ride adult-sized machines that they may not be able to operate safely.””

 

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Source: Dealernews.com

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